我想問數學o既一d問題.......

2007-05-15 2:18 am

我想問呢....

1.x+4.1=7.3 x=??

2.b *75%=24 b=??

3.g(39%-24%)=6 g=??
唔該幫幫我呀~唔識做呀....

回答 (5)

2007-05-15 2:22 am

✔ 最佳答案

1) x+4.1 = 7.3
x = 7.3-4.1
x =3.2

2) b*75% = 24
b = 24/75%
b = 32

3) g(39%-24%) = 6
15%g = 6
g = 6/15%
g = 40

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2007-05-15 2:48 am

1) x+4.1 = 7.3
x = 7.3-4.1
x =3.2

2) b*75% = 24
b = 24/75%
b = 32

3) g(39%-24%) = 6
15%g = 6
g = 6/15%
g = 40

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2007-05-15 2:24 am

1 x+4.1=7.3 x
x+4.1-7.3 x=0
x(1-7.3)+4.1=0
x(-6.3)=-4.1
x=(-4.1)/(-6.3)
2
b *75%=24 b
0.75b-24b=0
b=0
3
g(39%-24%)=6 g
g(0.15)-6g=0
-5.85g=0
g=0

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2007-05-15 2:23 am

1.x+4.1=7.3
x=7.3-4.1
x=3.2

2. b *75%=24
b*0.75=24
b=24/0.75
b=32

3.g(39%-24%)=6
g(15%)=6
g(0.15)=6
g=6/0.15
g=40

參考: myself

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2007-05-15 2:21 am

X=3.2
b=24/75%
=32
g=6/15%
=40

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